From: Marc-André Lureau <[email protected]>
---
src/gallium/state_trackers/dri/drisw.c | 23 ++++++++++++++++++++++-
1 file changed, 22 insertions(+), 1 deletion(-)
diff --git a/src/gallium/state_trackers/dri/drisw.c
b/src/gallium/state_trackers/dri/drisw.c
index 40cbca54940..e24fcba3869 100644
--- a/src/gallium/state_trackers/dri/drisw.c
+++ b/src/gallium/state_trackers/dri/drisw.c
@@ -117,6 +117,26 @@ get_image2(__DRIdrawable *dPriv, int x, int y, int width,
int height, int stride
data, dPriv->loaderPrivate);
}
+static inline bool
+get_image_shm(__DRIdrawable *dPriv, int x, int y, int width, int height,
+ struct pipe_resource *res)
+{
+ __DRIscreen *sPriv = dPriv->driScreenPriv;
+ const __DRIswrastLoaderExtension *loader = sPriv->swrast_loader;
+ struct winsys_handle whandle;
+
+ whandle.type = WINSYS_HANDLE_TYPE_SHMID;
+
+ if (loader->base.version < 4 || !loader->getImageShm)
+ return FALSE;
+
+ if (!res->screen->resource_get_handle(res->screen, NULL, res, &whandle,
PIPE_HANDLE_USAGE_WRITE))
+ return FALSE;
+
+ loader->getImageShm(dPriv, x, y, width, height, whandle.handle,
dPriv->loaderPrivate);
+ return TRUE;
+}
+
static void
drisw_update_drawable_info(struct dri_drawable *drawable)
{
@@ -364,7 +384,8 @@ drisw_update_tex_buffer(struct dri_drawable *drawable,
x, y, w, h, &transfer);
/* Copy the Drawable content to the mapped texture buffer */
- get_image(dPriv, x, y, w, h, map);
+ if (!get_image_shm(dPriv, x, y, w, h, res))
+ get_image(dPriv, x, y, w, h, map);
/* The pipe transfer has a pitch rounded up to the nearest 64 pixels.
get_image() has a pitch rounded up to 4 bytes. */
--
2.17.0
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